The strip_tags function in PHP 4.x up to 4.3.7, and 5.x up to 5.0.0RC3, does not filter null (\0) characters within tag names when restricting input to allowed tags, which allows dangerous tags to be processed by web browsers such as Internet Explorer and Safari, which ignore null characters and facilitate the exploitation of cross-site scripting (XSS) vulnerabilities.

The memory_limit functionality in PHP 4.x up to 4.3.7, and 5.x up to 5.0.0RC3, under certain conditions such as when register_globals is enabled, allows remote attackers to execute arbitrary code by triggering a memory_limit abort during execution of the zend_hash_init function and overwriting a HashTable destructor pointer before the initialization of key data structures is complete.

PHP before 4.3.7 on Win32 platforms does not properly filter all shell metacharacters, which allows local or remote attackers to execute arbitrary code, overwrite files, and access internal environment variables via (1) the "%", "|", or ">" characters to the escapeshellcmd function, or (2) the "%" character to the escapeshellarg function.

CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is
MITRE's CVE web site.
CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is
MITRE's CWE web site.
OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is
MITRE's OVAL web site.

Use of this information constitutes acceptance for use in an AS IS condition.
There are NO warranties, implied or otherwise, with regard to this information or its use.
Any use of this information is at the user's risk.
It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content.
EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site.
ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT,
INDIRECT or any other kind of loss.